From: Muli Ben-Yehuda Date: Tue, 26 Sep 2006 08:52:33 +0000 (+0200) Subject: [PATCH] remove tce_cache_blast_stress() X-Git-Tag: v2.6.19-rc1~1077^2~119 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ccf4ae3144360ab9c00d0b53427f43369287bfb;p=linux-2.6 [PATCH] remove tce_cache_blast_stress() tce_cache_blast_stress was useful during bringup to stress the IOMMU's cache flushing. Now that we quiesce DMAs on every cache flush, using _stress() brings the machine down to its knees once you put it under load. Remove this debug / bringup code that isn't useful anymore completely. Signed-off-by: Muli Ben-Yehuda Signed-off-by: Jon Mason Signed-off-by: Andi Kleen --- diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 7c43cb0f71..cd866135e4 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -129,11 +129,6 @@ static void tce_cache_blast(struct iommu_table *tbl); #ifdef CONFIG_IOMMU_DEBUG int debugging __read_mostly = 1; -static inline void tce_cache_blast_stress(struct iommu_table *tbl) -{ - tce_cache_blast(tbl); -} - static inline unsigned long verify_bit_range(unsigned long* bitmap, int expected, unsigned long start, unsigned long end) { @@ -153,10 +148,6 @@ static inline unsigned long verify_bit_range(unsigned long* bitmap, #else /* debugging is disabled */ int debugging __read_mostly = 0; -static inline void tce_cache_blast_stress(struct iommu_table *tbl) -{ -} - static inline unsigned long verify_bit_range(unsigned long* bitmap, int expected, unsigned long start, unsigned long end) { @@ -289,8 +280,6 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, } __clear_bit_string(tbl->it_map, entry, npages); - - tce_cache_blast_stress(tbl); } static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,